ABAP Select data from SAP table UPDMCHA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP UPDMCHA table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to UPDMCHA. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the UPDMCHA table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_UPDMCHA TYPE STANDARD TABLE OF UPDMCHA,
      WA_UPDMCHA TYPE UPDMCHA,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <UPDMCHA> TYPE UPDMCHA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_UPDMCHA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM UPDMCHA
  INTO TABLE IT_UPDMCHA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UPDMCHA
*  INTO TABLE @DATA(IT_UPDMCHA2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_UPDMCHA INDEX 1 INTO DATA(WA_UPDMCHA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_UPDMCHA ASSIGNING <UPDMCHA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UPDMCHA>-LVORM = 1.
<UPDMCHA>-AENAM = 1.
<UPDMCHA>-LAEDA = 1.
<UPDMCHA>-VERAB = 1.
<UPDMCHA>-VFDAT = 1.

ENDLOOP.

LOOP AT IT_UPDMCHA INTO WA_UPDMCHA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UPDMCHA-ZUSCH, sy-vline,
  WA_UPDMCHA-LIFNR, sy-vline,
  WA_UPDMCHA-LICHA, sy-vline,
  WA_UPDMCHA-BWTAR, sy-vline,
  WA_UPDMCHA-LWEDT, sy-vline,
  WA_UPDMCHA-FVDT1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UPDMCHA you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_UPDMCHA TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_UPDMCHA INTO WA_UPDMCHA.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_UPDMCHA_STR, 
LVORM TYPE STRING,
AENAM TYPE STRING,
LAEDA TYPE STRING,
VERAB TYPE STRING,
VFDAT TYPE STRING,
ZUSCH TYPE STRING,
LIFNR TYPE STRING,
LICHA TYPE STRING,
BWTAR TYPE STRING,
LWEDT TYPE STRING,
FVDT1 TYPE STRING,
FVDT2 TYPE STRING,
FVDT3 TYPE STRING,
FVDT4 TYPE STRING,
FVDT5 TYPE STRING,
FVDT6 TYPE STRING,
HERKL TYPE STRING,
HERKR TYPE STRING,
MTVER TYPE STRING,
QNDAT TYPE STRING,
HSDAT TYPE STRING,
ZUSTD TYPE STRING,
CUOBJ_BM TYPE STRING,
DEACT_BM TYPE STRING,
SGT_SCAT TYPE STRING,
ZFDAT TYPE STRING,
/SAPMP/XPCBT TYPE STRING,
FSH_SEASON_YEAR TYPE STRING,
FSH_SEASON TYPE STRING,
FSH_COLLECTION TYPE STRING,
FSH_THEME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UPDMCHA_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_UPDMCHA_STR-LVORM sy-vline 
WA_UPDMCHA_STR-AENAM sy-vline 
WA_UPDMCHA_STR-LAEDA sy-vline 
WA_UPDMCHA_STR-VERAB sy-vline 
WA_UPDMCHA_STR-VFDAT sy-vline 
WA_UPDMCHA_STR-ZUSCH sy-vline 
WA_UPDMCHA_STR-LIFNR sy-vline 
WA_UPDMCHA_STR-LICHA sy-vline 
WA_UPDMCHA_STR-BWTAR sy-vline 
WA_UPDMCHA_STR-LWEDT sy-vline 
WA_UPDMCHA_STR-FVDT1 sy-vline 
WA_UPDMCHA_STR-FVDT2 sy-vline 
WA_UPDMCHA_STR-FVDT3 sy-vline 
WA_UPDMCHA_STR-FVDT4 sy-vline 
WA_UPDMCHA_STR-FVDT5 sy-vline 
WA_UPDMCHA_STR-FVDT6 sy-vline 
WA_UPDMCHA_STR-HERKL sy-vline 
WA_UPDMCHA_STR-HERKR sy-vline 
WA_UPDMCHA_STR-MTVER sy-vline 
WA_UPDMCHA_STR-QNDAT sy-vline 
WA_UPDMCHA_STR-HSDAT sy-vline 
WA_UPDMCHA_STR-ZUSTD sy-vline 
WA_UPDMCHA_STR-CUOBJ_BM sy-vline 
WA_UPDMCHA_STR-DEACT_BM sy-vline 
WA_UPDMCHA_STR-SGT_SCAT sy-vline 
WA_UPDMCHA_STR-ZFDAT sy-vline 
WA_UPDMCHA_STR-/SAPMP/XPCBT sy-vline 
WA_UPDMCHA_STR-FSH_SEASON_YEAR sy-vline 
WA_UPDMCHA_STR-FSH_SEASON sy-vline 
WA_UPDMCHA_STR-FSH_COLLECTION sy-vline 
WA_UPDMCHA_STR-FSH_THEME sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.